Cotchin will miss his second straight match with his third hamstring setback of the season, and is set for a big session on Sunday morning to prove his fitness to face West Coast in round 22.
"I think he's highly likely to play next week," coach Damien Hardwick said before training on Friday.
"If he hadn't had the previous history, he'd be playing this week, but we'll always be more conservative with those type of guys."
Source: AFL website